Energy-consumption protection method for mobile phone with MeeGo operation system

Abstract

The invention discloses an energy-consumption protection method for a mobile phone with a MeeGo operation system, which comprises the following steps: 1) electric quantity threshold value control: reading the electric quantity through an API program interface of the MeeGo, and rending the system in a low-electric quantity protection state when the electric quantity is smaller than a preset threshold value of the system; 2) low-electric quantity protection: regulating the state of a central processing unit (CPU) to Sleep according to a frequency reduction instruction, and turning off a dynamic storage, a Bluetooth, network connection and a screen of the system through hardware operation and drive; and 3) operation system protection: when the dynamic storage is turned off, writing operation information of the operation system, which is stored in the dynamic storage originally, in a static storage, and rendering the operation system in a suspended state. In the invention, the most important module which cannot be turned off is maintained and the service life of the system is prolonged as much as possible when the electric quantity of the system is about to be consumed completely, while when the power supply is restored, the operation system can be switched back to a normal operating state quickly. Thus, the effective time of the important functions of a system is assured.

Description

technical field [0001] The invention relates to the field of energy saving of embedded systems, in particular to an energy consumption protection method on MeeGo. Background technique [0002] The rapid development of semiconductor technology has created conditions for the continuous improvement of embedded processor technology. With the increasing integration and complexity of processors, and the continuous improvement of performance, its power consumption is also rising steadily. In recent years, the power consumption per unit area of ​​processors has increased exponentially. The rapid increase of power consumption has become a major factor restricting the further development of processors. However, most mobile embedded systems have to be powered by batteries due to the particularity of their application environment. Compared to wired power sources, batteries have limited capacity, so mobile embedded systems have stricter requirements on power consumption. However, com...

AI Technical Summary

Problems solved by technology

[0004] When existing mobile phones are in use, they often shut down automatically due to insufficient power, causing great trouble to users

Moreover, all current mobile phone operating systems do not have the ability to perform power protection when the power is insufficient.

When the user's power is about to run out, it is difficult for the system to effectively protect the remaining power, and there is no power planning solution specially designed for the new operating system MeeGo

Lack of quantitative planning for battery usage makes it impossible for the battery to last as long as it is about to run out

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